What are choke inductors used for?

A choke, also known as an inductor, is used to block higher-frequency while passing direct current (DC) and lower-frequencies of alternating current (AC) in an electrical circuit. The name comes from blocking, or “choking”, high frequencies while passing low frequencies.

What is the purpose of choke in fluorescent lamp?

The choke primarily serves to limit current flow to the correct level for the tube. It also can be used during startup to provide an inductive ‘kick’ forming a momentary higher-voltage pulse to start the lamp.

What is the use of choke in mercury Vapour lamp?

So in a conventional fluorescent lamp the role of the choke is to initiate the electrical discharge process. Once the discharge is struck it can be sustained through the drop in electrical resistance of the column.

What is the difference between inductor and choke?

Inductors are metal coils used in circuits. They are able to generate magnetic fields when they carry current. They are also able to induce magnetic fields in wires that are near them. Inductors that are used to help filter signals are called chokes.

On what principle does choke work?

Hint: A choke coil works by the principle of self induction. Its main function is to provide AC resistance to the circuit.

What is the function of choke in carburetor?

A choke valve is sometimes installed in the carburetor of internal combustion engines. Its purpose is to restrict the flow of air, thereby enriching the fuel-air mixture while starting the engine.

What is transformers used for?

Transformers are employed for widely varying purposes; e.g., to reduce the voltage of conventional power circuits to operate low-voltage devices, such as doorbells and toy electric trains, and to raise the voltage from electric generators so that electric power can be transmitted over long distances.

Does choke open or close carburetor?

The choke is a plate in the carburetor that opens and closes to allow more or less air into the engine. When doing a cold start, the choke should be closed to limit the amount of air going in. This increases the amount of fuel in the cylinder and helps to keep the engine running, while it is trying to warm up.